package com.itheima.admin.service.impl;

import com.itheima.admin.service.DashboardService;
import com.itheima.model.common.dtos.ResponseResult;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;

import java.util.HashMap;
import java.util.Map;

/**
 * Dashboard数据统计服务实现
 * 
 * @author itheima
 */
@Slf4j
@Service
public class DashboardServiceImpl implements DashboardService {

    @Override
    public ResponseResult getStats() {
        try {
            // TODO: 需要聚合多个微服务的数据
            // 1. 调用user-service获取用户统计
            // 2. 调用book-service获取图书统计
            // 3. 调用note-service获取笔记统计
            // 4. 调用review-service获取书评统计
            
            Map<String, Object> stats = new HashMap<>();
            stats.put("totalUsers", 0);
            stats.put("totalBooks", 0);
            stats.put("totalNotes", 0);
            stats.put("totalReviews", 0);
            stats.put("todayActiveUsers", 0);
            stats.put("todayNewUsers", 0);
            
            log.info("获取Dashboard统计数据成功");
            return ResponseResult.okResult(stats);
        } catch (Exception e) {
            log.error("获取Dashboard统计数据失败", e);
            return ResponseResult.errorResult(500, "获取统计数据失败：" + e.getMessage());
        }
    }

    @Override
    public ResponseResult getTrends() {
        try {
            // TODO: 需要聚合多个微服务的趋势数据
            // 可以从Redis缓存中获取，或者实时计算
            
            Map<String, Object> trends = new HashMap<>();
            trends.put("userGrowth", new int[]{0, 0, 0, 0, 0, 0, 0});
            trends.put("bookGrowth", new int[]{0, 0, 0, 0, 0, 0, 0});
            
            log.info("获取Dashboard趋势数据成功");
            return ResponseResult.okResult(trends);
        } catch (Exception e) {
            log.error("获取Dashboard趋势数据失败", e);
            return ResponseResult.errorResult(500, "获取趋势数据失败：" + e.getMessage());
        }
    }
}

